Final answer:
You must always signal when turning regardless of other vehicles' presence, with specific distance requirements based on your speed to maintain safety and follow traffic laws. Option b.
Step-by-step explanation:
The correct answer to the question is: b) Yes, you must signal for at least 200 feet under 50 mph or at least 300 feet at 50 mph or higher. Regardless of whether other vehicles are present or not, it is important to use turn signals. This habit ensures that you follow the law and also maintain safety practices that could prevent accidents in situations where you may not have noticed another road user.
Always signaling also reinforces safe driving habits, which are essential for pedestrian safety and for situations where other vehicles might approach unexpectedly. For instance, even if a vehicle seems to be far away, they might cover a significant distance quickly, especially if they are speeding, as often happens at intersections. Moreover, good signaling habits contribute to predictable driving which is crucial to road safety.